Ground contact signaling mechanism

Abstract

The invention discloses a ground contact signaling mechanism which is applied to a supporting leg component, a mounting seat and a supporting seat are arranged on the supporting leg component, the mounting seat is fixed to the neck of the supporting leg component, the portion, between the mounting seat and the supporting seat, of the supporting leg component is sleeved with an elastic reset component, a limiting sliding groove is formed in the supporting seat, and the head of the supporting leg component is fixedly sleeved with an induction component. The sensing part is arranged in a limiting sliding groove of the supporting seat in a sliding mode, a signaling device is installed on the supporting seat, the sensing face of the signaling device penetrates through the groove wall of the limiting sliding groove to face the sensing part, an avoiding hole is formed in the peripheral wall of the sensing part, and the sensing face of the signaling device is opposite to the avoiding hole of the sensing part when the sensing part does not make contact with the ground. The elastic reset component is in a natural state; during grounding, the sensing surface of the signaling device and the peripheral wall of the sensing part are completely overlapped, the signaling device sends grounding information, and the elastic reset part is in a compressed state. The grounding signal of the mechanism can be directly obtained, and the grounding signal is more reliable and accurate compared with indirect obtaining of the grounding signal.

Description

Technical Field

[0001] The present invention relates to the technical field of ground contact signal acquisition, and more specifically, the present invention is a ground contact signal transmission mechanism. Background Art

[0002] In engineering practice, ensuring that the actuator reliably contacts the ground is a crucial step. If a misjudgment occurs during this process, that is, the actuator is mistakenly believed to have touched the ground when in fact it has not, this situation may lead to serious safety accidents. At present, the method of judging whether the actuator has touched the ground usually relies on collecting relevant physical parameters, such as the pressure of the hydraulic cylinder or the current of the electric cylinder. This method is called indirect contact judgment by converting these collected parameter values ​​into contact force and then making a judgment.

[0003] However, this approach has certain limitations. When the actuator becomes stuck during movement or has moved to its maximum travel limit, it may cause the collected values ​​such as pressure or current to reach the preset judgment threshold. In this case, the system mistakenly believes that it has touched the ground even though it has not actually touched the ground, resulting in a misjudgment. This misjudgment may lead to a series of chain reactions, such as mistakenly stopping the movement of the actuator or mistakenly believing that the task has been completed, which in turn causes the operation of the entire system to fail.

[0004] Therefore, during the engineering design and operation process, great attention must be paid to the accuracy of ground contact judgment, and more reliable and precise methods must be adopted to ensure the safe and efficient operation of the actuator. Summary of the invention

[0005] In order to solve the technical problems of low reliability and accuracy of the existing indirect ground contact judgment method, from the perspective of directly obtaining the ground contact signal, the present invention innovatively provides a ground contact signal transmission mechanism, which directly obtains the ground contact signal of the mechanism, which is more reliable and accurate than indirectly obtaining the ground contact signal. By detecting whether there is a sensing surface in front of the signal transmission device, it can accurately judge whether the actuator touches the ground, ensuring the reliability of the judgment. This method overcomes the limitation of relying solely on the change in the distance between the signal transmission device and the sensing surface for judgment, and effectively avoids the problem of the signal transmission device sending the wrong signal due to the change in distance.

[0006] To achieve the above-mentioned technical objectives, an embodiment of the present invention discloses a ground-touching signaling mechanism, which is applied to a leg component, wherein the leg component is provided with a mounting seat and a support seat, the mounting seat is fixed to the neck of the leg component, an elastic reset component is sleeved on the leg component between the mounting seat and the support seat, a limiting slide groove is provided in the support seat, a sensing component is fixedly sleeved on the head of the leg component, the sensing component is slidably arranged in the limiting slide groove of the support seat, a signaling device is installed on the support seat, the sensing surface of the signaling device passes through the groove wall of the limiting slide groove toward the sensing component, an avoidance hole is provided on the outer peripheral wall of the sensing component, when not touching the ground, the sensing surface of the signaling device and the avoidance hole of the sensing component are opposite, and the elastic reset component is in a natural state; when touching the ground, the sensing surface of the signaling device and the outer peripheral wall of the sensing component completely overlap, the signaling device sends a ground-touching message, and the elastic reset part is in a compressed state.

[0007] Furthermore, the present invention provides a ground-touching signal transmitting mechanism, wherein when the elastic reset portion is in a natural state, there is a gap between the head of the leg component and the bottom of the limiting slide groove, and the sensing surface of the signal transmitting device is coaxial with the avoidance hole of the sensing component.

[0008] Furthermore, the present invention provides a ground-touching signal transmitting mechanism, wherein when the elastic reset portion is in a compressed state, the head of the leg component and the bottom of the limiting slide groove abut against each other, and the sensing surface of the signal transmitting device and the outer peripheral wall of the sensing component completely overlap.

[0009] Furthermore, the present invention provides a ground-touching signal transmission mechanism, wherein the shape of the head of the leg component is spherical, and the bottom of the limiting slide groove is provided with a spherical crown-shaped depression matching the spherical outer surface.

[0010] Furthermore, the present invention provides a ground-touching signal transmitting mechanism, wherein the area of ​​the circle of the largest opening part of the spherical crown-shaped recess is smaller than the cross-sectional area of ​​the limiting slide groove, so that a step surface is formed in the middle of the limiting slide groove, and the distance between the sensing component and the step surface is the same as the distance between the head of the leg component and the spherical crown-shaped recess.

[0011] Furthermore, the present invention provides a ground-touching signal transmitting mechanism, wherein the sensing surface of the signal transmitting device is circular, the avoidance hole is arranged in the middle of the outer peripheral wall of the sensing component, and the aperture of the avoidance hole is larger than the diameter of the sensing surface of the signal transmitting device.

[0012] Furthermore, the present invention provides a ground-touching signal transmitting mechanism, which also includes a top pressure plate, the top pressure plate is provided with a through hole for allowing the head of the leg component to pass through, one end of the top pressure plate is fixedly connected to the support seat, and the other end of the top pressure plate is provided with two first convex rings extending toward the elastic reset component on the side close to the inner edge, a first mounting groove is formed between the two positioning convex rings, one end of the elastic reset component is fixed in the first mounting groove, a second convex ring extending toward the elastic reset component is provided on the mounting seat, a second mounting groove is formed between the second convex ring and the outer peripheral wall of the leg component, and the other end of the elastic reset component is fixed in the second mounting groove.

[0013] Furthermore, the present invention provides a ground-touching signal transmitting mechanism, wherein a support plate is fixedly connected to a surface of the support seat away from the mounting seat, and the space occupied by the support plate is larger than the space occupied by the mounting seat.

[0014] Furthermore, the present invention provides a ground-touching signal transmitting mechanism, wherein the signal transmitting device is one of an inductive proximity switch, a capacitive proximity switch and a Hall proximity switch.

[0015] Furthermore, the present invention provides a ground-touching signal transmission mechanism, wherein the elastic reset component is one of a reset spring, a rubber support, an elastic sleeve and an elastic coupling.

[0016] The beneficial effects of the present invention are as follows: the mounting seat of the present invention is fixed on the neck of the leg member, and the support seat is arranged at the other end of the leg member. An elastic reset component is sleeved on the leg member between the support seat and the support seat. A limiting slide groove is arranged inside the support seat. The head of the leg member is fixedly sleeved with a sensing component, and this sensing component can be slidably arranged in the limiting slide groove of the support seat, so as to realize precise motion control. The function of the limiting slide groove is to limit the range of motion of the sensing component during its movement, so as to prevent it from exceeding the predetermined motion trajectory. A signal transmitting device is also installed on the support seat, and the sensing surface of the signal transmitting device passes through the groove wall of the limiting slide groove toward the sensing component. An avoidance hole is arranged on the outer peripheral wall of the sensing component, and the avoidance hole is designed so that when it is not touching the ground, the sensing surface of the signal transmitting device and the avoidance hole of the sensing component are opposite to each other, so as to avoid false triggering of the signal. In this state, the elastic reset component is in a natural state and is not subjected to any external force. When the leg part touches the ground, the elastic reset part is in a compressed state, the sensing surface of the signaling device and the outer peripheral wall of the sensing part completely overlap, and the signaling device will immediately send a touchdown message, indicating that the leg part has touched the ground, providing a continuous touchdown message. This touchdown message is obtained directly, so it is more reliable and accurate than the indirect way of obtaining the touchdown signal. By detecting whether there is a sensing surface in front of the signaling device, it is possible to accurately judge whether the actuator has touched the ground, ensuring the reliability of the judgment. This method overcomes the limitation of judging only by the change in the distance between the signaling device and the sensing surface, and effectively avoids the problem of the signaling device sending a signal incorrectly due to the change in distance. When the mechanism changes from the touchdown state to the non-touchdown state, the compressed elastic reset part will gradually return to its original state. In this process, the sensing surface of the signaling device and the avoidance hole of the sensing part are relative to each other again, and the touchdown message fed back by the signaling device disappears. This design ensures that the mechanism can accurately obtain the touchdown signal during the movement, thereby achieving precise control and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a ground-touching signal transmission mechanism of the present invention;

[0018] Figure 2 It is a structural schematic diagram of a ground-touching signal transmitting mechanism of the present invention in a non-ground-touching state;

[0019] Figure 3 The present invention is a schematic structural diagram of a ground contact signal transmission mechanism in a ground contact state. DETAILED DESCRIPTION

[0020] The following is a detailed explanation and description of a ground contact signal transmission mechanism of the present invention in conjunction with the accompanying drawings.

[0021] like Figure 1As shown, an embodiment of the present invention discloses a ground contact signaling mechanism, which is applied to a leg member 1. The leg member 1 includes but is not limited to the piston rod of a pneumatic cylinder, a hydraulic cylinder and an electric cylinder. The leg member 1 is provided with a mounting seat 2 and a support seat 3, wherein the mounting seat 2 is fixed to the neck 11 of the leg member 1, and the support seat 3 is arranged at the other end of the leg member 1. An elastic reset component 4 is sleeved on the leg member 1 between the mounting seat 2 and the support seat 3, a limiting slide groove 31 is arranged in the support seat 3, and a sensing component 5 is fixedly sleeved on the head 12 of the leg member 1, and the sensing component 5 is slidably arranged in the limiting slide groove 31 of the support seat 3. The function of the limiting slide groove 31 is to limit the movement range of the sensing component 5 during its movement, so as to prevent it from exceeding the predetermined movement trajectory. A signaling device 6 is installed on the support seat 3, and the sensing surface of the signaling device 6 passes through the groove wall of the limiting slide groove 31 toward the sensing component 5. An avoidance hole 51 is arranged on the outer peripheral wall of the sensing component 5, and the avoidance hole 51 is designed to be in a state of not touching the ground (see Figure 2 ), the sensing surface of the signal transmitting device 6 and the avoidance hole 51 of the sensing component 5 are opposite to each other, thereby avoiding false triggering of the signal. In this state, the elastic reset component 4 is in a natural state without any external force. Figure 3 ), the elastic reset component 4 is in a compressed state, the sensing surface of the signaling device 6 and the outer peripheral wall of the sensing component 5 are completely overlapped, and the signaling device 6 will immediately send a ground contact message, indicating that the leg component 1 has touched the ground, providing a continuous ground contact message. This ground contact message is obtained directly, so it is more reliable and accurate than the indirect way of obtaining the ground contact signal. By detecting whether there is a sensing surface in front of the signaling device, it is possible to accurately judge whether the actuator has touched the ground, thereby ensuring the reliability of the judgment. This method overcomes the limitation of relying solely on the change in the distance between the signaling device and the sensing surface for judgment, and effectively avoids the problem of the signaling device sending a signal incorrectly due to the change in distance. When the mechanism changes from the ground contact state to the non-ground contact state, the compressed elastic reset component 4 will gradually return to its original state. In this process, the sensing surface of the signaling device 6 and the avoidance hole 51 of the sensing component 5 are again opposite to each other, and the ground contact message fed back by the signaling device 6 disappears. This design ensures that the mechanism can accurately obtain the ground contact signal during movement, thereby achieving precise control and operation.

[0022] like Figure 1 Combined with Figure 2-3As shown, in one embodiment of the present invention, when the elastic reset component 4 is in its natural state, that is, when it is not touching the ground, there will be a certain gap between the head 12 of the leg component 1 and the bottom of the limiting slide groove 31. This design ensures that when the leg component 1 has not yet touched the ground, the sensing surface of the signaling device 6 and the avoidance hole 51 of the sensing component 5 can maintain coaxial alignment, and the sensing surface of the signaling device 6 is circular, the avoidance hole 51 is set in the middle of the outer peripheral wall of the sensing component 5, and the aperture of the avoidance hole 51 is larger than the diameter of the sensing surface of the signaling device 6. Such a structural arrangement can effectively avoid the generation of unnecessary overlapping contact surfaces between the sensing surface of the signaling device 6 and the sensing component 5 when the leg component 1 is not touching the ground, thereby preventing the signaling device 6 from erroneously sending signals due to misoperation. When the elastic reset component 4 is in a compressed state, that is, when it is touching the ground, the head 12 of the leg component 1 will be in close contact with the bottom of the limiting slide groove 31, and at this time, the sensing surface of the signaling device 6 and the outer peripheral wall of the sensing component 5 will completely overlap. This close contact state can effectively limit the displacement distance of the leg member 1, ensuring that at the moment the leg member 1 touches the ground, the sensing surface of the signaling device 6 and the outer peripheral wall of the sensing component 5 remain completely overlapped. This design can prevent the sensing surfaces of the sensing component 5 and the signaling device 6 from being misaligned due to excessive movement after touching the ground, thereby ensuring that the ground contact signal can be continuously and stably issued when the leg member 1 touches the ground. This design not only improves the reliability of the system, but also ensures that under various working conditions, the signaling device 6 can accurately feedback the ground contact status of the leg member 1, avoiding potential safety hazards caused by false triggering or signal interruption.

[0023] In one embodiment of the present invention, the head 12 of the leg member 1 is set to be spherical so that the connection with the support seat 3 is more stable and reliable. A spherical crown-shaped recess 32 matching the spherical outer surface is set at the bottom of the limiting slide 31. This ball-and-socket matching method enables the leg member 1 to be firmly connected to the support seat 3 when it touches the ground. The largest opening part of the spherical crown-shaped recess 32 is a circle, and its area is smaller than the cross-sectional area of ​​the limiting slide 31. This setting forms a step surface in the middle of the limiting slide 31, thereby increasing the stability of the structure. The distance between the sensing component 5 and the step surface is exactly the same as the distance between the head 12 of the leg member 1 and the spherical crown-shaped recess 32. When the leg member 1 touches the ground, the sensing component 5 will be in close contact with the step surface, and at the same time, the head 12 of the leg member 1 will also be completely and tightly fitted with the spherical crown-shaped recess 32. This double limit setting ensures the stability and reliability of the leg member 1 during use, thereby improving the stability and safety of the overall structure.

[0024] In one embodiment of the present invention, a top pressure plate 7 is also included. A through hole is designed on the top pressure plate 7 so that the head 12 of the leg member 1 can pass through. One end of the top pressure plate 7 is firmly connected to the support seat 3, and the other end of the top pressure plate 7 is provided with two first convex rings 71 extending toward the elastic reset member 4 on the side close to the inner edge. A first mounting groove is formed between the two positioning convex rings, and one end of the elastic reset member 4 is fixed in this first mounting groove. In addition, a second convex ring 21 extending toward the elastic reset member 4 is also provided on the mounting seat 2, and a second mounting groove is formed between the second convex ring 21 and the outer peripheral wall of the leg member 1, and the other end of the elastic reset member 4 is fixed in this second mounting groove. Such a design makes the connection of the elastic reset member 4 more secure, ensuring the stability and reliability of the entire structure.

[0025] In one embodiment of the present invention, a support plate 8 is fixedly connected to the surface of the support seat 3 away from the mounting seat 2. The space occupied by this support plate 8 is larger than the space occupied by the mounting seat 2. Through this design, the support plate 8 can effectively reduce the pressure of the leg member 1 on the ground, thereby reducing the burden on the ground. At the same time, the presence of the support plate 8 also helps to disperse the pressure borne by the support seat 3, making the entire structure more stable and balanced. In this way, not only the service life of the ground is extended, but also the bearing capacity of the overall structure is improved to ensure its stable operation.

[0026] In one embodiment of the present invention, the signaling device 6 can be one of an inductive proximity switch, a capacitive proximity switch or a Hall proximity switch. These proximity switches are widely used in the field of industrial automation, and can detect the existence or position change of an object and transmit information through the change of an electrical signal. As for the elastic reset component 4, it can be one of a reset spring, a rubber support, an elastic sleeve or an elastic coupling. The main function of these components is to provide a certain elastic force to ensure that the mechanical system can return to its original state after being subjected to an external force.

[0027] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and simple improvements made to the essential contents of the present invention should be included in the protection scope of the present invention.

Claims

1. A ground contact signaling mechanism, applied to a leg member, characterized in that: The leg component is provided with a mounting seat and a support seat, the mounting seat is fixed to the neck of the leg component, an elastic reset component is sleeved on the leg component between the mounting seat and the support seat, a limiting slide groove is provided in the support seat, a sensing component is fixedly sleeved on the head of the leg component, the sensing component is slidably set in the limiting slide groove of the support seat, a signal transmitting device is installed on the support seat, the sensing surface of the signal transmitting device passes through the groove wall of the limiting slide groove toward the sensing component, an avoidance hole is provided on the outer peripheral wall of the sensing component, when not touching the ground, the sensing surface of the signal transmitting device and the avoidance hole of the sensing component are opposite, and the elastic reset component is in a natural state; when touching the ground, the sensing surface of the signal transmitting device and the outer peripheral wall of the sensing component completely overlap, the signal transmitting device sends a ground touching message, and the elastic reset part is in a compressed state.

2. A ground-touching signal transmission mechanism according to claim 1, characterized in that: When the elastic reset portion is in a natural state, there is a gap between the head of the leg component and the bottom of the limiting slide groove, and the sensing surface of the signal transmitting device is coaxial with the avoidance hole of the sensing component.

3. A ground-touching signal transmission mechanism according to claim 2, characterized in that: When the elastic reset portion is in a compressed state, the head of the leg component and the bottom of the limiting sliding groove abut against each other, and the sensing surface of the signal transmitting device and the outer peripheral wall of the sensing component completely overlap.

4. A ground-touching signal transmission mechanism according to claim 3, characterized in that: The shape of the head of the leg component is spherical, and the bottom of the limiting sliding groove is provided with a spherical crown-shaped depression matching the spherical outer surface.

5. A ground-touching signal transmission mechanism according to claim 4, characterized in that: The area of ​​the circle of the largest opening part of the spherical crown-shaped recess is smaller than the cross-sectional area of ​​the limiting slide groove, so that a step surface is formed in the middle of the limiting slide groove, and the distance between the sensing component and the step surface is the same as the distance between the head of the leg component and the spherical crown-shaped recess.

6. A ground-touching signal transmission mechanism according to claim 5, characterized in that: The sensing surface of the signal transmitting device is circular, the avoidance hole is arranged in the middle of the outer peripheral wall of the sensing component, and the aperture of the avoidance hole is larger than the diameter of the sensing surface of the signal transmitting device.

7. A ground-touching signal transmission mechanism according to claim 6, characterized in that: It also includes a top pressure plate, which is provided with a through hole for the head of the leg member to pass through, one end of the top pressure plate is fixedly connected to the support seat, and the other end of the top pressure plate is provided with two first convex rings extending toward the elastic reset member on the side close to the inner edge, a first mounting groove is formed between the two positioning convex rings, one end of the elastic reset member is fixed in the first mounting groove, a second convex ring extending toward the elastic reset member is provided on the mounting seat, a second mounting groove is formed between the second convex ring and the outer peripheral wall of the leg member, and the other end of the elastic reset member is fixed in the second mounting groove.

8. The ground contact signal transmission mechanism according to claim 7, characterized in that: A support plate is fixedly connected to the surface of the support seat away from the mounting seat, and the space occupied by the support plate is larger than the space occupied by the mounting seat.

9. A ground contact signal transmission mechanism according to any one of claims 1 to 8, characterized in that: The signaling device is one of an inductive proximity switch, a capacitive proximity switch and a Hall proximity switch.

10. A ground contact signal transmission mechanism according to any one of claims 1 to 8, characterized in that: The elastic reset component is one of a reset spring, a rubber support, an elastic sleeve and an elastic coupling.

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